5K40.81 Motors & Generators: Small Hand Cranked Generators & Flashlight
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Photo of the Demonstration at the University of Texas at Austin.
Instructions / Notes:
- A small hand cranked DC generator is coupled to a second DC generator - which then functions as motor.
Another, more robust DC generator is connected to one or two automotive light bulbs.
After about 3 or 4 seconds of cranking, the internal friction of the generator increases
due to the resistance of the heated filament in the bulb or bulbs.
Demo Staff: One of the two, blue Genecon generators needs to be taped to the table top to prevent it from flopping around.
Last Updated 2023 - University of Texas at Austin Physics Dept.
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